论文标题

弱玻色子质量的异常移位和Quintessence electroweak轴轴上

The anomalous shift of the weak boson mass and the quintessence electroweak axion

论文作者

Lin, Weikang, Yanagida, Tsutomu T., Yokozaki, Norimi

论文摘要

解释观察到的W玻璃质量质量转移的最简单方法之一是引入$ su(2)_l $ triplet higgs玻色子,其零超充电量为零,其真空期望值约为3 GEV。如果三重态在$ \ Mathcal {O}(1)$ TEV上足够重,则本质上仅贡献$ t $参数,而不会对观察进行任何冲突。复杂的三胞胎希格斯玻色子的存在将$ su(2)_l $量规耦合常数达到$α_2(m _ {\ rm pl})\ simeq 1/44 $在Planck量表上。由于这个较大的量规耦合常数,我们证明了电动轴真空能解释了观察到的宇宙常数,但前提是轴支球场位于目前电势的山顶附近。

One of the simplest ways to account for the observed W-boson mass shift is to introduce the $SU(2)_L$ triplet Higgs boson with zero hypercharge, whose vacuum expectation value is about 3 GeV. If the triplet is heavy enough at $\mathcal{O}(1)$ TeV, it essentially contributes only to $T$ parameter without any conflict to the observation. The presence of a complex triplet Higgs boson raises the $SU(2)_L$ gauge coupling constant to $α_2(M_{\rm PL} )\simeq 1/44$ at the Planck scale. Thanks to this larger gauge coupling constant, we show that the electroweak axion vacuum energy explains the observed cosmological constant provided that the axion field is located near the hill top of the potential at present.

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